:root{--primary-color:#4361ee;--secondary-color:#3a0ca3;--accent-color:#7209b7;--light-color:#f8f9fa;--dark-color:#212529;--gray-color:#6c757d;--success-color:#4cc9f0;--warning-color:#f72585;--hash-color:#06d6a0;--sha1-color:#ff9e00;--sha256-color:#118ab2;--sha512-color:#ef476f;--border-radius:12px;--box-shadow:0 8px 24px rgba(0,0,0,0.1);--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',sans-serif}body{background-color:#f0f2f5;color:var(--dark-color);line-height:1.6}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}header{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:white;padding:20px 0;box-shadow:0 4px 12px rgba(0,0,0,0.1);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:15px}.logo i{font-size:2.5rem}.logo h1{font-size:1.8rem;font-weight:700}.logo span{color:var(--success-color)}nav ul{display:flex;list-style:none;gap:25px}nav a{color:white;text-decoration:none;font-weight:600;font-size:1.1rem;padding:8px 12px;border-radius:6px;transition:var(--transition)}nav a:hover,nav a.active{background-color:rgba(255,255,255,0.2)}.mobile-menu-btn{display:none;font-size:1.5rem;background:none;border:none;color:white;cursor:pointer}main{padding:40px 0}.tool-section{display:none;animation:fadeIn 0.5s ease}.tool-section.active{display:block}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.section-title{font-size:1.8rem;margin-bottom:25px;color:var(--secondary-color);display:flex;align-items:center;gap:10px}.section-title i{color:var(--accent-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-bottom:40px}.tool-card{background:white;border-radius:var(--border-radius);padding:25px;box-shadow:var(--box-shadow);transition:var(--transition);cursor:pointer;border:2px solid transparent}.tool-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.tool-card i{font-size:2.5rem;color:var(--primary-color);margin-bottom:15px}.tool-card h3{font-size:1.4rem;margin-bottom:10px;color:var(--dark-color)}.tool-card p{color:var(--gray-color);margin-bottom:20px}.use-tool-btn{background-color:var(--primary-color);color:white;border:none;padding:10px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:var(--transition);width:100%}.use-tool-btn:hover{background-color:var(--secondary-color)}.tool-detail{background:white;border-radius:var(--border-radius);padding:30px;box-shadow:var(--box-shadow);margin-top:30px}.tool-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:15px;border-bottom:2px solid #f0f2f5}.tool-header h2{font-size:1.6rem;color:var(--secondary-color)}.close-tool{background:none;border:none;font-size:1.5rem;color:var(--gray-color);cursor:pointer;transition:var(--transition)}.close-tool:hover{color:var(--warning-color)}.hash-container{display:flex;flex-direction:column;gap:20px}.hash-row{display:flex;flex-wrap:wrap;gap:20px}.hash-col{flex:1;min-width:300px}.hash-col h3{margin-bottom:10px;color:var(--dark-color);font-size:1.2rem;display:flex;align-items:center;gap:8px}.input-label{color:var(--hash-color)}.output-label{color:var(--sha256-color)}textarea{width:100%;height:200px;padding:15px;border:2px solid #e0e0e0;border-radius:var(--border-radius);font-family:'Consolas','Monaco','Courier New',monospace;font-size:0.95rem;line-height:1.5;resize:vertical;transition:var(--transition)}textarea:focus{outline:none;border-color:var(--primary-color)}#input-text{border-left:4px solid var(--hash-color)}#hash-result{border-left:4px solid var(--sha256-color)}.hash-actions{display:flex;gap:15px;flex-wrap:wrap}.action-btn{padding:12px 24px;border-radius:6px;border:none;font-weight:600;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:8px}.btn-primary{background-color:var(--primary-color);color:white}.btn-primary:hover{background-color:var(--secondary-color)}.btn-secondary{background-color:#e9ecef;color:var(--dark-color)}.btn-secondary:hover{background-color:#dee2e6}.btn-warning{background-color:var(--warning-color);color:white}.btn-warning:hover{background-color:#d1146a}.btn-hash{background-color:var(--hash-color);color:white}.btn-hash:hover{background-color:#05c08f}.btn-sha1{background-color:var(--sha1-color);color:white}.btn-sha1:hover{background-color:#e68e00}.btn-sha256{background-color:var(--sha256-color);color:white}.btn-sha256:hover{background-color:#0e7a9c}.btn-sha512{background-color:var(--sha512-color);color:white}.btn-sha512:hover{background-color:#d43c61}.config-options{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:15px;margin-top:15px}.option-group{background:#f8f9fa;padding:15px;border-radius:8px}.option-group h4{margin-bottom:10px;color:var(--secondary-color);font-size:1rem;display:flex;align-items:center;gap:8px}.checkbox-label{display:flex;align-items:center;gap:8px;margin-bottom:8px;cursor:pointer;font-size:0.95rem}.checkbox-label input[type="checkbox"]{width:16px;height:16px;cursor:pointer}.radio-label{display:flex;align-items:center;gap:8px;margin-bottom:8px;cursor:pointer;font-size:0.95rem}.radio-label input[type="radio"]{width:16px;height:16px;cursor:pointer}.text-input{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:0.95rem;margin-top:5px}.select-input{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:0.95rem;margin-top:5px;background:white}.input-with-icon{position:relative}.input-with-icon i{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--gray-color);cursor:pointer}.stats{display:flex;gap:15px;flex-wrap:wrap;margin-top:20px}.stat-box{background:#f8f9fa;padding:15px;border-radius:8px;flex:1;min-width:150px;text-align:center}.stat-value{font-size:1.8rem;font-weight:700;color:var(--primary-color)}.stat-label{color:var(--gray-color);font-size:0.9rem;margin-top:5px}.error-message{background-color:#ffeaea;border-left:4px solid #ff6b6b;padding:15px;border-radius:6px;margin-top:20px;display:none}.error-message.show{display:block;animation:fadeIn 0.3s ease}.error-title{color:#d63031;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}.error-content{color:#636e72;font-family:'Consolas',monospace;font-size:0.9rem;white-space:pre-wrap;word-break:break-all}.examples{margin-top:30px;background:#f8f9fa;border-radius:var(--border-radius);padding:20px}.examples h3{margin-bottom:15px;color:var(--secondary-color);display:flex;align-items:center;gap:8px}.example-buttons{display:flex;gap:10px;flex-wrap:wrap}.example-btn{padding:8px 16px;background-color:white;border:1px solid #ddd;border-radius:6px;cursor:pointer;transition:var(--transition);font-size:0.9rem}.example-btn:hover{background-color:var(--primary-color);color:white;border-color:var(--primary-color)}.advanced-options{margin-top:20px;padding:15px;background:#f8f9fa;border-radius:8px;border-left:4px solid var(--accent-color)}.advanced-toggle{display:flex;align-items:center;gap:10px;cursor:pointer;font-weight:600;color:var(--secondary-color);margin-bottom:10px}.advanced-content{display:none;padding-top:15px;border-top:1px solid #ddd}.advanced-content.show{display:block}.history{margin-top:30px;border-radius:var(--border-radius);overflow:hidden;border:1px solid #e0e0e0;background:white;max-height:300px;overflow-y:auto}.history-header{background:#f8f9fa;padding:10px 15px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e0e0e0}.history-title{font-weight:600;color:var(--dark-color)}.history-content{padding:15px}.history-item{padding:10px;border-bottom:1px solid #eee;font-size:0.9rem;display:flex;justify-content:space-between;align-items:center}.history-item:last-child{border-bottom:none}.history-algorithm{padding:3px 8px;border-radius:4px;font-size:0.8rem;font-weight:600}.history-algorithm.sha1{background-color:rgba(255,158,0,0.1);color:var(--sha1-color)}.history-algorithm.sha256{background-color:rgba(17,138,178,0.1);color:var(--sha256-color)}.history-algorithm.sha512{background-color:rgba(239,71,111,0.1);color:var(--sha512-color)}.history-algorithm.md5{background-color:rgba(108,117,125,0.1);color:var(--gray-color)}.history-time{color:var(--gray-color);font-size:0.8rem}footer{background-color:var(--dark-color);color:white;padding:40px 0;margin-top:60px}.footer-content{display:flex;flex-wrap:wrap;justify-content:space-between;gap:40px}.footer-section{flex:1;min-width:250px}.footer-section h3{font-size:1.3rem;margin-bottom:20px;color:var(--success-color)}.footer-links{list-style:none}.footer-links li{margin-bottom:10px}.footer-links a{color:#ddd;text-decoration:none;transition:var(--transition)}.footer-links a:hover{color:var(--success-color)}.copyright{text-align:center;margin-top:40px;padding-top:20px;border-top:1px solid #444;color:#aaa;font-size:0.9rem}@media (max-width:768px){.header-content{flex-direction:column;gap:20px}nav ul{flex-direction:column;gap:10px;text-align:center}.mobile-menu-btn{display:block;position:absolute;top:25px;right:20px}.mobile-menu{display:none;width:100%;margin-top:15px}.mobile-menu.show{display:block}.hash-row{flex-direction:column}.hash-col{min-width:100%}.hash-actions{flex-direction:column}.action-btn{width:100%;justify-content:center}.config-options{grid-template-columns:1fr}}.result-label{display:inline-block;padding:2px 8px;border-radius:4px;font-size:0.8rem;font-weight:600;margin-left:8px}.result-success{background-color:rgba(76,201,240,0.1);color:var(--success-color)}.result-error{background-color:rgba(247,37,133,0.1);color:var(--warning-color)}.algorithm-info{background-color:#f8f9fa;border-radius:8px;padding:15px;margin-bottom:20px;border-left:4px solid var(--sha256-color)}.algorithm-info h4{color:var(--secondary-color);margin-bottom:10px;display:flex;align-items:center;gap:8px}.algorithm-info p{margin-bottom:8px;font-size:0.95rem;color:var(--gray-color)}.info-box{background-color:#e7f4ff;border:1px solid #b3d9ff;border-radius:6px;padding:12px;margin-top:15px;color:#004085;font-size:0.9rem}.algorithm-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}.algorithm-tag{padding:8px 16px;border-radius:20px;font-size:0.9rem;font-weight:600;cursor:pointer;transition:var(--transition);border:2px solid transparent}.algorithm-tag.sha1{background-color:rgba(255,158,0,0.1);color:var(--sha1-color);border-color:var(--sha1-color)}.algorithm-tag.sha256{background-color:rgba(17,138,178,0.1);color:var(--sha256-color);border-color:var(--sha256-color)}.algorithm-tag.sha512{background-color:rgba(239,71,111,0.1);color:var(--sha512-color);border-color:var(--sha512-color)}.algorithm-tag.md5{background-color:rgba(108,117,125,0.1);color:var(--gray-color);border-color:var(--gray-color)}.algorithm-tag.active{background-color:var(--primary-color);color:white;border-color:var(--primary-color)}.algorithm-tag:hover:not(.active){transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,0.1)}.file-upload{border:2px dashed #ddd;border-radius:var(--border-radius);padding:30px;text-align:center;cursor:pointer;transition:var(--transition);margin-bottom:20px}.file-upload:hover{border-color:var(--primary-color);background-color:rgba(67,97,238,0.05)}.file-upload i{font-size:3rem;color:var(--primary-color);margin-bottom:15px}.file-upload p{color:var(--gray-color);margin-bottom:10px}.file-info{display:flex;align-items:center;gap:10px;margin-top:10px;padding:10px;background-color:#f8f9fa;border-radius:6px}.file-name{flex:1;font-weight:600}.file-size{color:var(--gray-color);font-size:0.9rem}.progress-bar{height:8px;background-color:#e9ecef;border-radius:4px;overflow:hidden;margin-top:10px}.progress-fill{height:100%;background-color:var(--success-color);border-radius:4px;transition:width 0.3s ease}